- Quick specs
- Price: Free
- Operating system: Windows 2003, Windows Vista, Windows Me, Windows NT, Windows XP, Windows 2000, Windows 98
- Date added: January 05, 2009
- Total Downloads: 2,101,828
- Downloads last week: 21,647
- See full specifications
A newer version of 7-Zip is available.
(Download doesn't provide access to previous versions of this program.)
- CNET editors' rating: stars
- Average user rating: stars out of 599 votes
See all user reviews
CNET editors' review
Reviewed by: Seth Rosenblatt on November 08, 2008
It's easy for Windows users to forget that WinZip isn't the only file-compression utility in the world. Like its better-known competitors, the free 7-Zip unpacks a host of archive formats, including ZIP, TAR, GZ, and its own 7z format. Unlike WinZip, though, it can create TAR and GZ archives, which are commonly used on Unix and Linux systems.
The program's ability to shrink files was stunning. In our tests, 7z archives were up to 40 percent smaller then their ZIP equivalents, although compression did take longer, and the highest compression settings can hog system resources. Advanced options include the ability to create solid and self-extracting archives, and to adjust the compression level and password protection. The program also has a command line module. Though the main interface is overly simple and looks like it was designed for Windows 95, it's not hard to use and fairly self-explanatory. The context menu options, which include "testing" an archive, indicate that 7-Zip should be taken seriously.
7-Zip is fine for casual users with a bit of computer savvy, but it's especially well-suited for developers and anyone else who moves between the Windows and Linux/Unix worlds.
Publisher's description
From 7-Zip Software :The main features of 7-Zip: High compression ratio in new 7z format with LZMA compression. Supported formats: Packing / unpacking: 7z, ZIP, GZIP, BZIP2 and TAR; Unpacking only: ARJ, CAB, CHM, CPIO, DEB, DMG, HFS, ISO, LZH, LZMA, MSI, NSIS, RAR, RPM, UDF, WIM, XAR and Z. For ZIP and GZIP formats 7-Zip provides compression ratio that is 2-10 % better than ratio provided by PKZip and WinZip. Self-extracting capability for 7z format. Integration with Windows Shell. Powerful File Manager. Powerful command line version.
What's new in this version:
- The bug in 7-Zip 4.63 was fixed: 7-Zip could not decrypt .ZIP archives encrypted with WinZip-AES method.
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User reviews of 7-Zip 4.64
- Average user rating: 4.4 stars out of 599 votes
- My rating: 0 stars Write review
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Showing 5 of 11 user reviewsSee all 11 user reviews
This software version | All versions -
Version: 7-Zip 4.64
Pros: i compared compressing some photos and videos with a file size of 61mb using this 7zip and winrar. the former does the job faster with a file size of 52mb. the latter on the other hand, got it at around 60mb. very bad for winrar..
Cons: sometimes it took longer to compress some files than winrar..
Summary: i'l use both. winrar 3.80 and this 7zip 4.64 for .7z files. btw, 7zip can also extract rar files. very good combination!
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Version: 7-Zip 4.64
Pros: Locate and right click on your files to begin compression.
Cons: Should be even easier to use (one click compression), with extra options available via menu choice during right click. Right now it is very close to that, but it is offering to compress and send as an email, which is not very useful to most people.
Summary: Great software. I hope to see it stay, and also to remain free. It is very difficult to complain about anything that is free!
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Version: 7-Zip 4.64
"Best file compression prorgam..."
Pros: Free, easy to use, has the most important formats... What else do you want??
Cons: Nothing important.
Summary: I hane been using 3 months and I had no problem. There s nothing I would change in this progarm.
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Version: 7-Zip 4.64
Pros: Very good software, easy-to-use
Cons: nothing to say
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Version: 7-Zip 4.64
Pros: Want to DECODE rar file
Cons: don't want to ENCODE rar files
Summary: I just want to decode rar and par files, don't understand how to do this, because there ain't ANY directions how to do that, no instructions how to use this program.
- See all 11 user reviews Write review
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